"Bill Gates' house is a large earth-sheltered mansion in the side of a hill overlooking Lake Washington in Medina, Washington. The 66,000 sq ft (6,100 m2) house is noted for its design and the technology it incorporates. It is nicknamed Xanadu 2.0.[1] In 2009, property taxes were reported to be US $1.063 million on a total assessed value of US$147.5 million.[2]"